LT6118 Current Sense Amplifier, Reference and Comparator with POR Fea T Descrip T n Current Sense Amplifier The LT 6118 is a complete high side current sense device Fast Step Response: 500ns that incorporates a precision current sense amplifier, an Low Offset Voltage: 200V Maximum integrated voltage reference and a latching comparator. Low Gain Error: 0.2% Maximum The comparator latch functionality can be enabled or n Internal 400mV Precision Reference disabled and the comparator can be configured to reset n Internal Comparator upon power-on. The input and the open-drain output of Power-On Reset Capability the comparator are independent from the current sense Fast Response Time: 500ns amplifier. The comparator trip point and amplifier gain are Total Threshold Error: 1.25% Maximum configured with external resistors. n Wide Supply Range: 2.7V to 60V The overall propagation delay of the LT6118 is typically only n Supply Current: 450A 1.4s, allowing for quick reaction to overcurrent condi- n Specified for 40C to 125C Temperature Range tions. The 1MHz bandwidth allows the LT6118 to be used n Available in 8-Lead MSOP and 8-Lead (2mm 3mm) for error detection in critical applications such as motor DFN Packages control. The high threshold accuracy of the comparator, combined with the ability to latch the comparator, ensures a T the LT6118 can capture high speed events. n Overcurrent and Fault Detection The LT6118 is fully specified for operation from 40C to n Current Shunt Measurement 125C, making it suitable for industrial and automotive n Battery Monitoring applications. The LT6118 is available in the small 8-lead n Motor Control MSOP and 8-lead DFN packages. n Automotive Monitoring and Control L, LT, LTC, LTM, TimerBlox, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective n Industrial Control owners. Typical a T Response to Overcurrent Event Fast Acting Fault Protection with Power-On Reset 0.1 IRF9640 12V TO LOAD V LOAD 0.1F 1k 100 6.2V* 10V/DIV 24.9k SENSEHI SENSELO 0V + V OUTA V OUT I 3.3V LE LT6118 LOAD 1k 200mA/DIV 100nF 6.04k 10k 0mA V OUTC 250mA DISCONNECT 2N2700 OUTC INC 5V/DIV 250mA DISCONNECT 0V V 1.6k 6118 TA01a 6118 TA01b 5s/DIV *CMH25234B 6118f 1 For more information www.linear.com/LT6118 ion pplica ions pplica ion uresLT6118 a Te Maxi Mu M r a T (Note 1) + Total Supply Voltage (V to V ) .................................60V Amplifier Output Short-Circuit Duration (to V ) .. Indenfi ite Maximum Voltage Operating Temperature Range (Note 3) + (SENSELO, SENSEHI, OUTA) ............................... V + 1V LT6118I ................................................40C to 85C + Maximum V (SENSELO or SENSEHI) ....................33V LT6118H ............................................. 40C to 125C Maximum LE Voltage ................................................60V Specified Temperature Range (Note 3) Maximum Comparator Input Voltage ........................60V LT6118I ................................................40C to 85C Maximum Comparator Output Voltage......................60V LT6118H ............................................. 40C to 125C Input Current (Note 2) ..........................................10mA Maximum Junction Temperature .......................... 150C SENSEHI, SENSELO Input Current ....................... 10mA Storage Temperature Range .................. 65C to 150C Differential SENSEHI or SENSELO Input Current ..2.5mA MSOP Lead Temperature (Soldering, 10 sec) ........300C p in c F T TOP VIEW TOP VIEW 8 SENSELO 1 SENSEHI + SENSELO 1 8 SENSEHI LE 2 7 V + 9 LE 2 7 V OUTC 3 6 OUTA OUTC 3 6 OUTA V 4 5 INC V 4 5 INC MS8 PACKAGE 8-LEAD PLASTIC MSOP DCB PACKAGE 8-LEAD (2mm 3mm) PLASTIC DFN = 163C/W, = 45C/W JA JC = 64C/W, = 10C/W JA JC EXPOSED PAD (PIN 9) IS V , PCB CONNECTION OPTIONAL o r Der i n F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LT6118IMS8 PBF LT6118IMS8 TRPBF LTGNS 8-Lead Plastic MSOP 40C to 85C LT6118HMS8 PBF LT6118HMS8 TRPBF LTGNS 8-Lead Plastic MSOP 40C to 125C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: